Resultados globales: 67 registros encontrados en 0.02 segundos.
Artículos, Encontrados 61 registros
Libros y colecciones, Encontrados 1 registros
Documentos de investigación, Encontrados 5 registros
Artículos Encontrados 61 registros  1 - 10siguientefinal  ir al registro:
1.
Ion bombardment induced formation of self-organized wafer-scale GaInP nanopillar assemblies / Visser, Dennis (KTH Royal Institute of Technology. Department of Applied Physics) ; Jaramillo Fernández, Juliana (KTH Royal Institute of Technology. Department of Applied Physics) ; Haddad, Gabriel (KTH Royal Institute of Technology. Department of Applied Physics) ; Sotomayor Torres, Clivia M. (Institut Català de Nanociència i Nanotecnologia) ; Anand, Srinivasan (KTH Royal Institute of Technology. Department of Applied Physics)
Ion sputtering assisted formation of nanopillars is demonstrated as a wafer-scale, lithography-free fabrication method to obtain high optical quality gallium indium phosphide (GaInP) nanopillars. Compared to binary materials, little has been reported on the formation of self-organized ternary nanostructures. [...]
2020 - 10.1116/1.5127265
Journal of vacuum science and technology. B, Nanotechnology & microelectronics, Vol. 38, issue 1 (Jan. 2020) , art. 12801  
2.
9 p, 3.0 MB Broadband dynamic polarization conversion in optomechanical metasurfaces / Zanotto, Simone (Consiglio Nazionale delle Ricerche. Istituto Nanoscienze. Nest) ; Colombano Sosa, Martin (Institut Català de Nanociència i Nanotecnologia) ; Navarro Urrios, Daniel. (Universitat de Barcelona. Departament d'Electrònica) ; Biasiol, Giorgio (Consiglio Nazionale delle Ricerche. Istituto Officina dei Materiali. Laboratorio TASC) ; Sotomayor Torres, Clivia M. (Institut Català de Nanociència i Nanotecnologia) ; Tredicucci, Alessandro (Università di Pisa. Dipartimento di Fisica) ; Pitanti, Alessandro (Consiglio Nazionale delle Ricerche. Istituto Nanoscienze. Nest)
Artificial photonic materials, nanofabricated through wavelength-scale engineering, have shown astounding and promising results in harnessing, tuning, and shaping photonic beams. Metamaterials have proven to be often outperforming the natural materials they take inspiration from. [...]
2020 - 10.3389/fphy.2019.00231
Frontiers in physics (Lausanne), Vol. 7 (Jan. 2020) , art. 231  
3.
6 p, 1.6 MB A novel contactless technique for thermal field mapping and thermal conductivity determination : two-laser Raman thermometry / Reparaz, Juan Sebastian (Institut Català de Nanociència i Nanotecnologia) ; Chavez-Angel, Emigdio (Universitat Autònoma de Barcelona. Departament de Física) ; Wagner, Markus R. (Institut Català de Nanociència i Nanotecnologia) ; Graczykowski, Bartlomiej (Institut Català de Nanociència i Nanotecnologia) ; Gomis-Bresco, Jordi (Institut Català de Nanociència i Nanotecnologia) ; Alzina, Francesc (Institut Català de Nanociència i Nanotecnologia) ; Sotomayor Torres, Clivia M. (Institut Català de Nanociència i Nanotecnologia)
We present a novel contactless technique for thermal conductivity determination and thermal field mapping based on creating a thermal distribution of phonons using a heating laser, while a second laser probes the local temperature through the spectral position of a Raman active mode. [...]
2014 - 10.1063/1.4867166
Review of Scientific Instruments, Vol. 85, issue 3 (March 2014) , art. 34901  
4.
13 p, 281.1 KB Modification of Akhieser mechanism in Si nanomembranes and thermal conductivity dependence of the Q-factor of high frequency nanoresonators / Chavez-Angel, Emigdio (Universitat Autònoma de Barcelona. Departament de Física) ; Zarate, R.A. (Universidad Católica del Norte. Departamento de Física) ; Gomis-Bresco, Jordi (Institut Català de Nanociència i Nanotecnologia) ; Alzina, Francesc (Institut Català de Nanociència i Nanotecnologia) ; Sotomayor Torres, Clivia M. (Institut Català de Nanociència i Nanotecnologia)
We present and validate a reformulated Akhieser model that takes into account the reduction of thermal conductivity due to the impact of boundary scattering on the thermal phonons' lifetime. We consider silicon nanomembranes with mechanical mode frequencies in the GHz range as textbook examples of nanoresonators. [...]
2014 - 10.1088/0268-1242/29/12/124010
Semiconductor Science and Technology, Vol. 29, issue 12 (Dec. 2014) , art. 124010  
5.
43 p, 7.1 MB Graphene related materials for thermal management / Fu, Yifeng (Chalmers University of Technology) ; Hansson, Josef (Chalmers University of Technology) ; Liu, Ya (Fudan University) ; Chen, Shujing (Shanghai University) ; Zehri, Abdelhafid (Chalmers University of Technology) ; Samani, Majid Kabiri (Chalmers University of Technology) ; Wang, Nan (SHT Smart High Tech AB) ; Ni, Yuxiang (Southwest Jiaotong University) ; Zhang, Yan (Shanghai University) ; Zhang, Zhi-Bin (Uppsala University) ; Wang, Qianlong (Shenzhen Shen Rui Graphene Technology) ; Li, Mengxiong (Fudan University) ; Lu, Hongbin (Fudan University) ; Sledzinska, Marianna (Institut Català de Nanociència i Nanotecnologia) ; Sotomayor Torres, Clivia M. (Institut Català de Nanociència i Nanotecnologia) ; Volz, Sebastian (University of Tokyo) ; Balandin, Alexander A. (University of California) ; Xu, Xiangfan (Tongji University) ; Liu, Johan (Shanghai University)
Almost 15 years have gone ever since the discovery of graphene as a single atom layer. Numerous papers have been published to demonstrate its high electron mobility, excellent thermal and mechanical as well as optical properties. [...]
2019 - 10.1088/2053-1583/ab48d9
2D Materials, Vol. 7, Núm. 1 (October 2019) , art. 12001  
6.
30 p, 1.1 MB Raman antenna effect from exciton-phonon coupling in organic semiconducting nanobelts / Wang, Mao (Norwegian University of Science and Technology) ; Gong, Yi (Norwegian University of Science and Technology) ; Alzina, Francesc (Institut Català de Nanociència i Nanotecnologia) ; Svoboda, Ondrej (Brno University of Technology) ; Ballesteros, Belén (Institut Català de Nanociència i Nanotecnologia) ; Sotomayor Torres, Clivia M. (Institut Català de Nanociència i Nanotecnologia) ; Xiao, Senbo (Norwegian University of Science and Technology) ; Zhang, Zhiliang (Norwegian University of Science and Technology) ; He, Jianying (Norwegian University of Science and Technology)
The highly anisotropic interactions in organic semiconductors together with the soft character of organic materials lead to strong coupling between nuclear vibrations and exciton dynamics, which potentially results in anomalous electrical, optical and optoelectrical properties. [...]
2017 - 10.1039/c7nr07212k
Nanoscale, Vol. 9, Issue 48 (December 2017) , p. 19328-19336  
7.
9 p, 9.5 MB Elastic Properties of Few Nanometers Thick Polycrystalline MoS2 Membranes : A Nondestructive Study / Graczykowski, Bartlomiej (Max Planck Institute for Polymer Research) ; Sledzinska, Marianna (Institut Català de Nanociència i Nanotecnologia) ; Placidi, Marcel (Institut de Recerca en Energia de Catalunya) ; Saleta Reig, David (Institut Català de Nanociència i Nanotecnologia) ; Kasprzak, M. (Adam Mickiewicz University in Poznan) ; Alzina, Francesc (Institut Català de Nanociència i Nanotecnologia) ; Sotomayor Torres, Clivia M. (Institut Català de Nanociència i Nanotecnologia)
The performance gain-oriented nanostructurization has opened a new pathway for tuning mechanical features of solid matter vital for application and maintained performance. Simultaneously, the mechanical evaluation has been pushed down to dimensions way below 1 μm. [...]
2017 - 10.1021/acs.nanolett.7b03669
Nano letters, Vol. 17, Issue 12 (December 2017) , p. 7647-7651  
8.
7 p, 2.1 MB Enhanced thermoelectric properties of lightly Nb doped SrTiO3 thin films / Bhansali, Sweta (Institut Català de Nanociència i Nanotecnologia) ; Khunsin, Worawut (Institut Català de Nanociència i Nanotecnologia) ; Chatterjee, Arindom (Institut Català de Nanociència i Nanotecnologia) ; Santiso, José (Institut Català de Nanociència i Nanotecnologia) ; Abad, B. (Instituto de Microelectrónica de Madrid) ; Martín González, Marisol (Instituto de Microelectrónica de Madrid) ; Jakob, G. (Johannes Gutenberg-Universität Mainz. Institut für Physik) ; Sotomayor Torres, Clivia M. (Institut Català de Nanociència i Nanotecnologia) ; Chávez Ángel, Emigdio (Institut Català de Nanociència i Nanotecnologia)
Novel thermoelectric materials developed for operation at room temperature must have similar or better performance along with being as ecofriendly as those commercially used, e. g. , BiTe, in terms of their toxicity and cost. [...]
2019 - 10.1039/c9na00361d
Nanoscale advances, Vol. 1, Issue 9 (September 2019) , p. 3647-3653  
9.
33 p, 1.2 MB 2D Phononic Crystals : Progress and Prospects in Hypersound and Thermal Transport Engineering / Sledzinska, Marianna (Institut Català de Nanociència i Nanotecnologia) ; Graczykowski, Bartlomiej (Max Planck Institute for Polymer Research) ; Maire, Jeremie (Institut Català de Nanociència i Nanotecnologia) ; Chávez Ángel, Emigdio (Institut Català de Nanociència i Nanotecnologia) ; Sotomayor Torres, Clivia M. (Institut Català de Nanociència i Nanotecnologia) ; Alzina, Francesc (Institut Català de Nanociència i Nanotecnologia)
The central concept in phononics is the tuning of the phonon dispersion relation, or phonon engineering, which provides a means of controlling related properties such as group velocity or phonon interactions and, therefore, phonon propagation, in a wide range of frequencies depending on the geometries and sizes of the materials. [...]
2020 - 10.1002/adfm.201904434
Advanced functional materials, Vol. 30, Issue 8 (February 2020) , art. 1904434  
10.
9 p, 1.4 MB Crossover from ballistic to diffusive thermal transport in suspended graphene membranes / Sachat, Alexandros el (Institut Català de Nanociència i Nanotecnologia) ; Köenemann, F. (IBM Research) ; Menges, F. (University of Colorado. Department of Physics) ; Del Corro García, Elena (Institut Català de Nanociència i Nanotecnologia) ; Garrido Ariza, José A. (Institut Català de Nanociència i Nanotecnologia) ; Sotomayor Torres, Clivia M. (Institut Català de Nanociència i Nanotecnologia) ; Alzina, Francesc (Institut Català de Nanociència i Nanotecnologia) ; Gotsmann, B. (IBM Research)
We report heat transport measurements on suspended single-layer graphene disks with radius of 150-1600 nm using a high-vacuum scanning thermal microscope. The results of this study revealed a radius-dependent thermal contact resistance between tip and graphene, with values between 1. [...]
2019 - 10.1088/2053-1583/ab097d
2D Materials, Vol. 6, Núm. 2 (April 2019) , art. 25034  

Artículos : Encontrados 61 registros   1 - 10siguientefinal  ir al registro:
Libros y colecciones Encontrados 1 registros  
1.
4 p, 239.4 KB On the Enhancement of the Thermal Conductivity of Graphene-Based Nanofluids / Rodríguez Laguna, María del Rocío (Institut Català de Nanociència i Nanotecnologia) ; Sotomayor Torres, Clivia M. (Institut Català de Nanociència i Nanotecnologia) ; Gómez Romero, Pedro 1959- (Institut Català de Nanociència i Nanotecnologia) ; Chávez Ángel, Emigdio (Institut Català de Nanociència i Nanotecnologia)
Heat transfer fluids have been extensively used in both low-temperature and high temperature applications (e. g. microelectronics cooling and concentrated solar power). However, their low thermal conductivity is still a limit on performance. [...]
Cork : IEEE, 2018 (Proceedings of the IEEE Conference on Nanotechnology) - 10.1109/NANO.2018.8626244
IEEE 18th International Conference on Nanotechnology (IEEE-NANO), 2018, p. 8626244  

Documentos de investigación Encontrados 5 registros  
1.
169 p, 10.2 MB Heat transfer fluids : from fundamental aspects of graphene nanofluids at room temperature to molten salts formulations for solar-thermal conversion / Rodríguez Laguna, María del Rocío, autor. ; Gómez Romero, Pedro, 1959- supervisor acadèmic. ; Sotomayor Torres, Clivia M, supervisor acadèmic. ; Chávez Ángel, Emigdio, supervisor acadèmic. ; Ros i Badosa, Josep, supervisor acadèmic. ; Universitat Autònoma de Barcelona. Departament de Química
Los fluidos de transferencia de calor, y en particular los nanofluidos, se pueden considerar un elemento esencial en diversos sectores industriales y su rendimiento es clave para una adecuada aplicación en tecnologías que van desde la gestión térmica y la refrigeración, a la generación de energía solar térmica y eléctrica mediante el uso de intercambiadores de calor. [...]
Heat transfer fluids and nanofluids constitute an important element in the industry and their performance is key to the successful application in technologies that go from heat management and cooling to heat exchangers in thermal-solar energy and electricity generation. [...]

[Barcelona] : Universitat Autònoma de Barcelona, 2019.  
2.
164 p, 10.6 MB Thermoelectric performance of layered cobaltate epitaxial films deposited by pulsed laser evaporation / Chatterjee, Arindom, autor. ; Santiso López, José, supervisor acadèmic. ; Sotomayor Torres, Clivia M., supervisor acadèmic. ; Garcia Alonso, Gemma, supervisor acadèmic. ; Universitat Autònoma de Barcelona. Departament de Física ; Institut Català de Nanociència i Nanotecnologia (ICN2)
El efecto termoeléctrico o efecto Seebeck es un fenómeno característico de un conductor eléctrico y que proporciona información fundamental como la estructura electrónica del material entorno a la energía de Fermi. [...]
Thermoelectric Seebeck effect is a very important phenomenon of a charge conductor as it provides fundamental information such as the electronic band structure near Fermi energy. Thermoelectric devices are very important from a technological point of view because of its ability to convert electricity from a temperature gradient. [...]

[Bellaterra] : Universitat Autònoma de Barcelona, 2018.  
3.
113 p, 4.5 MB Thermoelectric properties of oxides and related materials / Bhansali, Sweta, autor ; Sotomayor Torres, Clivia M., supervisor acadèmic ; Mompart Penina, Jordi, supervisor acadèmic (Universitat Autònoma de Barcelona. Departament de Física) ; Universitat Autònoma de Barcelona. Departament de Física ; Institut de Nanociència i Nanotecnologia
Las películas delgadas y superredes de titanato de estroncio dopados con niobio (SrTiO3 son un tipo de material que ha mostrado ser cada vez más interesante para propósitos termoeléctricos debido a sus propiedades estructurales, térmicas y eléctricas sintonizables. [...]
Nb doped Strontium titanate (SrTiO3) thin films and multilayers are an increasingly interesting type of material for thermoelectricity due to their tunable structural, thermal and electrical properties. [...]

[Barcelona] : Universitat Autònoma de Barcelona, 2017  
4.
215 p, 7.7 MB Functional surfaces by means of nanoimprint lithography techniques / Fernández Estévez, Ariadna, autor ; Sotomayor Torres, Clivia M., supervisor acadèmic ; Kehagias, Nikolaos, supervisor acadèmic ; Mompart Penina, Jordi, supervisor acadèmic (Universitat Autònoma de Barcelona. Departament de Física) ; Universitat Autònoma de Barcelona. Departament de Física
Diferentes funcionalidades pueden ser obtenidas en diversas superficies a través de topografía en lugar de química, inspirándose en la naturaleza. El principal objetivo de esta tesis es la investigación de la litografía de nanoimpresión (NIL) como una técnica de fabricación factible para modificar superficies y así alterar sus propiedades físicas, utilizándolas para aplicaciones superhidrofóbicas y oleofóbicas. [...]
Different surface functionalities can be achieved by means of topography instead of chemistry, based on inspirations from nature. The main objective of this thesis is the investigation of Nanoimprint Lithography (NIL) as a feasible fabrication technique to modify both organic and inorganic surfaces to alter their physical properties and utilize them for superhydrophobic and oleophobic applications. [...]

[Barcelona] : Universitat Autònoma de Barcelona, 2016  
5.
240 p, 2.8 MB Confined acoustic phonons in si nanomembranes: impact on thermal properties / Chávez Ángel, Emigdio ; Sotomayor Torres, Clivia M., dir. ; Mompart Penina, Jordi, dir. (Universitat Autònoma de Barcelona. Departament de Física) ; Universitat Autònoma de Barcelona. Departament de Física
La tendencia de la miniaturización tecnológica ha conducido a la generación de densidades de potencia que exceden los 100 watts/cm2, los cuales están en el orden del calor producido en los reactores termonucleares. [...]
The miniaturization trend of the technology has led to power level densities in excess 100 watts/cm2, which are in the order of the heat produced in a nuclear reactor. The need for new cooling techniques has positioned the thermal management on the stage the last years. [...]

[Barcelona] : Universitat Autònoma de Barcelona, 2014  

¿Le interesa recibir alertas sobre nuevos resultados de esta búsqueda?
Defina una alerta personal vía correo electrónico o subscríbase al canal RSS.